diff options
Diffstat (limited to 'drivers/platform/x86/sony-laptop.c')
| -rw-r--r-- | drivers/platform/x86/sony-laptop.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index de173909257a..d1f712e368ce 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -164,6 +164,9 @@ static int __sony_nc_gfx_switch_status_get(void); static int sony_nc_highspeed_charging_setup(struct platform_device *pd); static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd); +static int sony_nc_panelid_setup(struct platform_device *pd); +static void sony_nc_panelid_cleanup(struct platform_device *pd); + static int sony_nc_touchpad_setup(struct platform_device *pd, unsigned int handle); static void sony_nc_touchpad_cleanup(struct platform_device *pd); @@ -1385,6 +1388,12 @@ static void sony_nc_function_setup(struct acpi_device *device, pr_err("couldn't set up keyboard backlight function (%d)\n", result); break; + case 0x011D: + result = sony_nc_panelid_setup(pf_device); + if (result) + pr_err("couldn't set up panel ID function (%d)\n", + result); + break; default: continue; } @@ -1449,6 +1458,9 @@ static void sony_nc_function_cleanup(struct platform_device *pd) case 0x0163: sony_nc_kbd_backlight_cleanup(pd, handle); break; + case 0x011D: + sony_nc_panelid_cleanup(pd); + break; default: continue; } @@ -2540,6 +2552,53 @@ static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd) } } +/* Panel ID function */ +static struct device_attribute *panel_handle; + +static ssize_t sony_nc_panelid_show(struct device *dev, + struct device_attribute *attr, char *buffer) +{ + unsigned int result; + + if (sony_call_snc_handle(0x011D, 0x0000, &result)) + return -EIO; + + return snprintf(buffer, PAGE_SIZE, "%d\n", result); +} + +static int sony_nc_panelid_setup(struct platform_device *pd) +{ + unsigned int result; + + panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL); + if (!panel_handle) + return -ENOMEM; + + sysfs_attr_init(&panel_handle->attr); + panel_handle->attr.name = "panel_id"; + panel_handle->attr.mode = S_IRUGO; + panel_handle->show = sony_nc_panelid_show; + panel_handle->store = NULL; + + result = device_create_file(&pd->dev, panel_handle); + if (result) { + kfree(panel_handle); + panel_handle = NULL; + return result; + } + + return 0; +} + +static void sony_nc_panelid_cleanup(struct platform_device *pd) +{ + if (panel_handle) { + device_remove_file(&pd->dev, panel_handle); + kfree(panel_handle); + panel_handle = NULL; + } +} + /* Touchpad enable/disable */ struct touchpad_control { struct device_attribute attr; |